treat



7 sheets-sheen 1. l P. H. TREAT.

l ROLLING MILL.

(No Model.)

7 Sheets-Sheet 2.

F. H. TREAT. VROLLING MILL.

(No Model.)

N4 PETERS. PhnwLimngrlphnn washmgrnn, n.6,

(No Model.) 7 Sheets-Sheet 3.

L F. H. TREAT.

ROLLING MILL.

Patented Mar. 17, 1885.

N, PETERS. Phmmmhognpher. washinwn. uc,

7 sheets sheet 4.

(No Model.)

P. H. TREAT.

ROLLING MILL.

Patented Mar. 17, 1885.

N. FErERS. Phm-Lilhogmpher. Wgmngwn. n.6.

KNO Model.) 7 sheetssheet 5.

F. H. TREAT.

ROLLING MILL.

No. 814,088. Patented Mar. 1'7, 1885.

m n I 7 Sheets-Sheet 7. F. I-I. TREAT.

ROLLING MILL.

(No Model.)

Patented Mar. 1'7, 1885.

I rolls being shown.

STATES FRANCIS H. TREAT, OF JOLIET, ILLINOIS, ASSIGNOR OF TVVO-THIEDS TO HORACE S. SMITH AND CHARLES PETTIGREV, BOTH OF SAME PLAGE.

`ROLLING-MILL.

SPECIFICATION forming part of Letters Patent No. 314,083, dated March 17, 1885.

i Application filed Sepcmber i9, 1888. (No model.)

To all whom, it may concern:

Be it known .that I, FRANCIS H. TREAT, a citizen ofthe United States, residing at Joliet, in the county of Till and State of Illinois, have invented certain new and useful Improvements in Rolling-lllills; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention is `designed more especially to facilitate the rolling, by three-high rolls, of railroad-rails in long pieces to be subsequentlyY cut up into rails ot' required lengths; but it may be applied to three-high rolls for rolling metal beams, channel-bars, and the like.

The object of my invention is to carry on the whole of the series of operations for converting the bloom into a rail by power mech.- anism. v

To this end it consists of certain combinations of mechanical devices, which combinations are stated in the claims at the close of this speciiication.

In order that niy invention may be clearly. understood, I have illustrated in the annexed drawings and will proceed to describe the best form thereof at present known to me as applied tothrechigh rolls for rolling railroad rails. l y

Figure 1 is a front elevation of the roughing-rolls, only one-half of theupper andlower Fig. 2 is asimilar view of the finishing-rolls. Fig. 3 is a plan view of the rolls and my power mechanism in front thereof. Fig. 4 is a plan view 'of the rolls and my power mechanism in rear thereof. Fig. 5 is a transverse section, in planes indicated by lines l 11 12 13 on Fig. 3, of my power mechanism in iront ol" the rolls. Fig. 6 is atrausverse section, in planes indicated by lines`14 15 16 17 on Fig. 4, of my power mechanism in rear of the rolls. Fig. 7 is a longitudinal section of my power mechanism in front of the roughing-rolls, in planes indicated by lines 18 19 20 21 on Fig. 5. Fig. S is a longitudinal section of my power mechanism in front of the iinishing-rolls, in planes indicated by lines 22 23 24 25 on Fig. 5. Fig. 9 is a longitudinal section of my power mechanism in yrear of the roughing-rolls, in planes indicated by lines 26 27 28 29 on Fig. 6. Fig. 10 is a longitudinal section of my power mechanism iu rear of the linishiug-rolls, in planes indicated by lilies 30 31 3J 33 on Fig. 6. Fig. 55 11 isa transverse section on line 34 35 on Figs.- 4 and 10. Fig. 12 is a transverse section on line 36 37 on Figs. 4 and 10. Fig. 13 is a transverse section on line 33 39 on Figs. 4 and 10. Fig. 14 is a longitudinal section on line 6o 40 41 on Fig. 3. Fig. 15 is a transverse section on line 4243 on'Fig. 3. Fig. 16 is atransverse section on line 44 45 on Fig. 3.

Figs. 3,4, 7, S, 9, and 19 are drawn on the same scale; Figs. 5, 6, 14, 15, and 16 on a scale 65 twice as large; Figs. 11, 12, and 13 on a scale three times as large, and Figs. 1 and 2 on a scale nearly ve times as large.

The same letters of reference indicate identical parts in all the iigures. 7o A A A2 refer to the roughing-rolls, and B B' Bl to thev finishing-rolls. The roughingrolls are constructed to form the passes 1, 2,

3, and 4, and the finishing-rolls are constructed to form the passes 5, 6, 7, 3, 9, and 9, passes 75 9 and 9 being precisely alike, so that either may be used as the finishing-pass. The rolls do not differ from those now in common use for rolling steel railroad-rails, exceptthat the whole numberof passes in the two sets of rolls So has been diminished by two, that all the passes of the roughiug set are equally spaced, and that all the passes of the finishing set are also equally spaced. This equal' spacing of the` passes of the respective sets of rolls provides 35 for the use of the simplest form of mechanism for transferring the billet or piece from pass to pass. In Figs. 3 and 4 the upper rolls, A and B, are shown as plain cylinders, but the center liliesV of the passes are indicated by Q0 light lines marked the saine as the passes in Figs. 1 and 2. The rolls .may be mounted and driven in the usual manner.

In front of the roughing-rolls are two lines of feed-rollers, (marked C and D, respectively,) the feed-rollers C being arranged in line with pass 1, and the feed-rollers D in line with pass 3, and at an elevation proper for the introduction ofthe piece into the guides (not shown) l for said passes oi' the roughing-roils. These roo feed-rollers C and D are mounted in pairs, as shown, on cross-shafts E, journaled in iixed bearings E E, which are supported at one ond on the side wall of the longitudinal pit F,

and at the other end on a longitudinal beam, F, which rests on the end walls of said pit and on intermediate girders, F2. (See Fig. 5.) Each feed-roller shat't E carries a fast bevelwheel, E2, meshing` with a bevel-wheel, E. The bevel-wheels E'2 are fixed on a longitudinal shaft, Ff, journaled in fixed bearings E5, which are set on the bases of the bearings E. The end of the shaft E1 adjacent to the roughing-rolls carries a fast bevel-wheel, E, which meshes with a bevel-whecl, El, on the crankshaft E1 ot' a reversing-engine, R E. Thus the two lines of feed-rollers C and D are driven simultaneously, and may be rotated in either direction, though these particular feed-rollers really require to be rotated in one direction Y only.

The bloom a (sec Fig. 3) is delivered side wise to the line of feed-rollers C by means of a carriage, G, preferably provided with a line of ilanged rollers, G, for the support of the bloom. This lateral delivery carriage is mounted on trucks running on a crosstrack. the rails of which rest at one end on beam F over the pit F. All the feed-rollers C opposite to the delivery-carri At least their ends facing said carriage should be iange'less and constructed taperingly, as clearly shown in Figs. 3 and 5. The rollers G Vof the delivery-carriage support the bloom at such an elevation that on moving the carriage up to the line of feed-rollers C the bloom will ride up on the tapering ends of the latter, so that on reaching its proper position on the cylindric 1l portion of the said feed-rollers the bloom will no longer rest on the rollers G of thedelivery-carriage, although it still remains confined between the flanges thereof, so that it will be held in proper alignment as it is fed forward by the feed-rollers. Those feed-rollers which are located between the point where -being received upon a line the forward end of the bloom is delivered the roughingrolls are constructed with flanges for the guidance ofthe bloom, as shown.

The feedingsurface of all the feed-rollers C is cylindrical, so as to provide a horizontal support for the lower side of the rectangular bloom. The feed-rollers C feed the bloom into pass l of the roughing-rolls, from the rear side of which it en'ierges as piece b, (see Fig. 6,) of cylindrical and ` flanged feed-rollers, H,which act at the time as will be presently explained.

feeding-out rollers, but subsequently as feeding-in rollers, to feed piece b into pass 2, as

The feed-rollers H are fixed on cross-shafts H', mounted in suitable fixed bearings on a long rectangulari frame, H2. On the same cross-shafts H are secured iianged feed-roll ers I. The distance from center to center between the line of feed-rollers H and the line of feed-rollers I is equal to the distance from center to center between passes l and 3, or, what is the saine, passes 2 and 4. The feed-rollers H and I and frame H2 constitute a table, which I term the rear roughing-table,77 and which is supported over a pit, H13, by the age are flangeless.

| plunger of a single-acting hydraulic cylinder, Hl, through the intervention of the connectingrod H, the arms H1 on the longitudinal rockshaft H5, and the pairs of diverging struts H3 H3. The struts H3 are united at their lower ends and pivoted to the rockerarms Ht, one of .which is pivoted to the connecting-rod of the hydraulic cylinder. The upper ends of the struts are screw-threaded, and frame H1, through eyes on which these screw-threaded ends pass, is secured thereto by nuts h, which provide for the proper primary adjust-ment of the frame, as well as for the compensating for subsequent lost motion occasioned by wear in the movable joints. At one side frame H2 is connected to a couple ot' radius-links, H8, preferably of triangular form shown, and secured each to a shaft` 715, `iournaled in suitable bearings, h1, set by the side of pit H13.

The rear roughing-table, constructed and mounted as described, may be lifted by the plunger of the hydraulic cylinder H7 from the position it is shown in by full lilies in Fig. 6 to the position it is shown in by dotted lines, and will descend by its own weight from its upper to its lower position when the hydraulic pressure is removed from the plunger of hydraulic cylinder Hl. The radius-links cause a lateral movement ofthe table simultaneously with the up or down movement imparted to it by the hydraulic cylinder. The lateral movement of the table, as it is shifted from one position to the other, is exactly equal to the distance from the center ing-rolls to the center of the next pass thereof, and the ascending or descending movement of the table is suoli that it will carry the piece from the level of the passes formed by the middleand lower roughing-rolls to the passes formed by the middle and upper roughingrolls, and vice Versa. This obliquely ascending and descending table in rear ofthe roughing-rolls is thus adapted to receive the piece b from pass l. and move it up to the level of and in line with pass 2.

Each shaft H of the feed-rollers H carries at one end a bevel-wheel, h5, meshing with a bevel-wheel, it, on a shaft, H9, mounted in suitable bearings on the frame H1 ofthe table. Shaft H carries a fast spur-wheel, h?, which is driven by a spur-wheel, ha, fixedI on a pin, it, which forms the pivot for connecting tworlinks. h1@ and pivoted on shaft H, andlink t11 being pivoted on a shaft, H111, which is mounted in suita ble bearings, H11, set at the side of the pit H13. Afastspur-wheel` 7i, on shaft H10 drives wheel h3. Another fast spurwheel, h1, on shaft H10 is driven by a spur-wheel, it, gitud-inal shaft H12, the axis of which lies in a plane coincident with the plane ofthe axis ot' the crank-shaft Es E. Shaft H11 extends to a pointadjacent to the outer end of the crank-shaft E8, and carries a bevel-wheel, M5, which meshes with a bevel-wheel, h1, on the crankshaft E8. (Sec I are Fig. 3.)- Thus the feed-rollers H and 7L11. link h1 being on the lonof the reversing-engine R ILC I IC.'

IZO

driven by the same reversing-engine which l secured to the upper ends of arms L', fixed to drives the feed-rollers G and D, the drivingconnection from shaft H12 to the shaft H9 being maintained in either position of the table by the train of spur-gearing before described.

As the piece b emerges from pass Z of the roughing-rolls, it is received upon the fcedrollers H, then in the position they are shown in by full lines in Fig. 6. The rear roughingtable is then -liftedto the position it is shown in by dotted lines in Fig. 6, engine R E is reversed, and the piece b is fed into pass 2 of the roughing-rolls, emerging` therefrom as piece c. (See Figh.) Piece c is received in a trough, K, which is supported on arms K', j ournaled in stands K2. The trough K is also connected, at one side of the center of its sup- Vporting-arms,to t-he upper ends of connecting- 'c carried by it making a quarter-turn.

rods K3, the lower ends of which are pivoted to arms K4 of the longitudinal rock'shaft H5., heretofore described. After piece c has wholly emerged from pass 2, the hydraulic pressure. is removed from the plunger of hydraulic cylinder H7, so that the trough K may turn from its elevated position down into its lowermost position, both the trough and the piece The trough is so mounted that it stands a little to one side of a vertical line drawn through the axis of its supporting arms when it occupies its elevated position, so that its ytendency is to turn down. This is not absolutely neces sary, since it is connected te the same rockshaft to which the rear roughingtable is conA nected, and the descent of the rear roughingtable, which occurs the moment the hydraulic pressure is removed from the plunger of hydraulic cylinder HT, would therefore effect the turning ot' the trough, even though it stood,

when elevated, vertically over the axis of its supporting-arms. In turning the trough down on its side it carries piece c to and deposits it upon the feed-rollers D, the lower side ofthe trough being provided with openings 7c oppo site the feed-rollers D, (see Figs. 3 and 7,) to permit the trough to descend until its lower side is just below the upper surface of the feed-rollers D, s o that the piece will then be wholly supported on said feed-rollers. The openings k of the trough K are madel flaring,

. so as to prevent the piece from catching on y their edges as it is fed into the trough.

`ers D, engine R E is reversed, and the piece fed byV the feed -`rollers into pass 3 emergesl therefrom at the rear side as piece d, (see Fig. 6,) which is received upon the feed-rollers I, which are made ofsuitable contour to hold the piece in proper position for the next pass. The table at the rear side of the roughingrolls is immediately lifted, so as to carry the piece dto a position in line with pass 4 ofthe roughing-rolls. Engine R E is again reversed and piece d fed into pass 4, from which it emerges atA the front side of the roughing-rolls as piece e, (see Fig. 5,) being received in a suitablyshaped trough, L. This trough is a longitudinal rock-shaft, L, to which another arm, L3, is also secured. Arm L3 is pivoted at its outer end to the piston-rod of a doubleacting hydraulic cylinder hung on trunnions, so that it may oscillate. Trough L occupies `the position it is shown in by dotted lines in Fig. 5 while receiving piece e from pass 4 ot' the roughing-rolls. As soon as the piece has wholly emerged from said pass, the piston otl hydraulic cylinder L" is put in motion to turn the rock-shaft LZ a quarter-turn, whereby the trough L is carried by its arms L from the position it is shown in by dotted lines in Fig. 5

to the position it is shown in by full lines in said figure and Fig. 16, depositing the piece e,

y,pwliich receives a quarter-turn in the transfer,

support of the piece e, are arranged in line with the first pass-namcly, pass -of the finishing-rolls. Each of the feed-rollers M is secured to a separate cross-shaft, M', mounted in suitable fixed bearings. These cross-shafts M' carryT two additional lines of feed-rollers, marked, respectively, N and OI.) the feedroll ers N being arranged in line with pass 7 and the feed-rollers O in line with pass 9, seme of the latter being adjustable, so that they may feed the piece either to pass 9 or to pass 9, as may be required. Each shaft M', except one, which is coupled directly'to the crankshaft M4 of a reversingenginr, R- E', carries at one end a bevel-wheel, m, meshing with a bevelwheel, m', on one or the other of two longitudinal shafts, M3 M3, which are drivenfrom the crank-shaft M4 through the lnedium of bevel-wheels m2 mi m?, all as clearly shown in Fig. 3. i

Piece e is fed by feed-rollers M into pass 5 of the finishing-rolls, emerging at the rear side thereof as piece f. (See Figs. 6, 11, and 12.) lt is received upon a line of rollers, l?. A number of these rollers P adjacent to the nishing-rolls are mounted on a frame, P', hinged at its rear end to a stationary frame, P2, on which the residue of rollers P is mounted. Frame P' is hinged to a horizontal cross-shaft, P3, which is provided at its mid-,length with a downwardly-projecting pin, p, journaled in a cross-bar of frame P2, as clearly shown in Fig. 11. These parts constitute a universal joint for connecting the frame P' to the frame P2.

The forward end of frame P2 is supported over a pit, P, upon the plungerof a hydraulic cylinder, PS, through the medium of the connecting-rod P7 arm P of rock-shaft Pf and a b 7 7 IOO IIO

pair of struts, P* P4, as best shown in Fig. The lower ends of the struts P* are joined in a suitable coupling-piece, which is connected by ball-and-socket joint with the arm PG. The upper ends of the struts are secured to a crossshaft, p', journaled inthe frame P. (See Fig. 13.) The forward end of the frame P is also connected to a radius-link7 P1, through the intervention of a swiveling coupling, Pu, which in this instance is pivoted on one of the struts P4, as shown in Fig. 13. The radius-link P10 is pivoted to the upper end of a vertical pin, P13, journaled in a stand, P, at the side of the frame P. The feed-rollers P are secured to cross-shafts Q, which carry a second line of feed-rollers, Q. (See Figs. 4l` 6, 10, and 11.) rPhe distance from center to center between these lines of feed-rollers is equal to the disf-- tance from center to center between the passes 5 and 7, or, whatis the same, Gand 8.

The frame P', with its feed-rollers P and Q. constitutes a table which I term the movable rear nishing-table, and the frame P2, with its feed-rollers P and Q. constitutes a table which I term the stationary rear finishing-table.7 The adjacent ends of the two tables are at the same level, and I prefer to arrange the stationary table at the level of the upper and by dotted lines in Fig. 6.

passes, as shown, so that in feeding the piece into the upper passes these tables will bein the same horizontal plane. By the time the piece emerges from pass ofthe finishing-rolls it has attained such length as to be quite iiexible. I take advantage of this fact and make only a part of the rear finishing-table movable, for the purpose of shifting the piece from pass to pass at one end only. The slight bending of the piece and the slightly-oblique position which the lines of feed-rollersin the movable rear tinishing-table assume with reference to the lines of feed-rollers in the stationary rear .finishingtable do not interfere appreciably with the proper feeding out and feeding in of the piece. The two rollers P next to the finishing-rolls are made cylindrical, so as to hold the piece,which in emerging fromv pass 5 bears down hard upon one or both of these cylindrical rollers by reason of the inclined position ofthe movable table,firmly in position, and thereby prevent the piece from being twisted in the residue of rollers P, which have the contour shown in Figs. 1l and 12. So long as a part ot the piece remains in pass of the finishing-rolls, and the downward pressure on the cylindrical feed-.rollers P is maintained, the piece will be in the position it is shown in by full lines in Fig. 6 and by dotted in Fig. l1; but as soon as the piece is wholly discharged from pass 5 of the finishing-rolls, and its downward pressure on the cylindrical feed-rollers P suspended in consequence thereof, the piece f is at liberty to make a quarter-turn and assume the position it is shown in by full lines in Fig. l2 To effect the turning of the piece with certainty the feedrollers Pshould be kept ruiming for a moment after the discharge of the piece, and may 6. l be run back and forth if the piece should happen to stick. rI he piece will in every instance turn over on its side.

The cylindrical feed-rollers P are flanked by guide-plates p2 p2, for confining the piece and giving it proper direction.

The first shaft Q on the stationary rear iinishing-table is driven from the crank-shaft ML of reversing-engine R F. through the inter- Vention of the bevel-wheels p3 p4, shaft p5, and bevel-wheels p and p7. A bevel-wheel, p8, on the first shaft Q of the stationary rear finishing-table drives the bevel-wheel p9 on a longitudinal shaft, p19, shafts Q on the stationary rear nishing-table by sets of bevelwheels p p12, only one set being shown. The shafts Q on the movable rear finishing-table are driven by chain gearing from the first shaft Q on, the stationary rear finishing-table, as clearly shown in Fig. 4.

The feed-rollers P having received the piece f on emergence from pass 5, the plunger of hydraulic cylinder P is put in operation to lift the rear iinishing-table from the position it is shown in by full lines in Fig. 6 to the position it is shown in by dotted lines in said gure, whereby the piece,which in the meanwhile has made a quarter-turn, as before described, is transferred to the level of pass 6 of the finishing-rolls, with its adjacent end directly in line with said pass. Engine R E is then reversed, so that the feed-rollers P will feed the piece f into pass 6 of the finishingrolls, from which it emerges at the front side as pieceg at the level on which it is shown by dotted lines in Fig. 5, being received in a trough, R. rlhe end of the trough R adjacent to the finishing-rolls is connected by ball-audsocketjoint to the upper end of the connecting-rod R', the lower end of which is pivoted to an arm, R2, on the rock-shaft P5, before described, and which extends from pit Pin rear of the finishing-rolls to the pit R7 in front thereof. The connecting-rod R is also connected nearits junction with trough R with one end of a radius-link, R3, the other end of which is connected by a universal joint to a fixed stand, R4. The other end of the trough R is connected bya universaljoint (see Figs. 14 and 15) to a stand', R5, which is located at the adjacent end of a stationary longitudinal trough, R", which is arranged over some of the feed-rollers N, as shown in Fig. 3, the bottom ofthe trough R6 being at a slightly lower level than the top of the feed-rollers, which project through trumpet mouthed openings in the bottom thereof. The bottom of the movable trough R is provided with similar trumpet-mouthed openings, as shown in Fig. 14. The trough R I term the first movable flnishing-trough,7 and the trough R I term the first stationary finishing-trough.7 As soon as pieceg has been discharged from pass 6 of the nishingrolls, the hydraulic pressure is removed from the plunger of hydraulic cylinder P8, allowing the iirst movable finishing-trough to descend from the position it is shown in by dotted which drives the other IOO IIO

lines in Fig. 5 to the position it is shown in by full lines in said figure and Fig. 16, whereby ishing-table turns down at'the same time.

Engine R E is then reversed, so that the feedrollers N will feed the piece g into pass 7. It emerges at the `rear side of the iinishingrolls as piece -h at the level indicated by full lines in Fig. 6, and is received upon the feedrollers Q, the first two thereof on the movable rear finishing-table being ilanked by guideplates QZ, for giving proper direction to the piece. Immediately after the discharge of piece h from pass 7 the plunger of hydraulic cylinderv P8 is again put in motion to elevate the movable rear finishing-table to the position it is shown in by dotted lines, Figs. Gand 10, whereby the end of piece 7i adjacent to the finishing-rolls is carried into line with pass 8 thereof. Engine R E' is then again reversed, so that the feed-rollers Q will feed piece hinto pass 8, from which it emerges at the front side of the inishing-rolls as piece il at the level on which it is shown by dotted lines in Fig. 5. Piece i is received in a trough, S, which I term the second movable nishing-trough, and thev end of which remote from the nishing-rolls is connected by a universal joint to the stand R5, as best shown in Fig. l5.

The end of the trough S adjacent to the tin--` ishing-rolls is connected by ball-and-socket joint to the upper end of a connectingrod, S, the lower end of which is pivoted to the arm R2 of the same rock-shaft P5 to which the movablerearnishing-tableis connected,so thatthis second movable finishing-trough will move simultaneously with the movable rear nishing-table.

Connecting-rod tion with trough S to one end of a radius-link, S2, the other end of which is pivoted to a nut, S3, on a screw, S, which is journaled at its ends in bearings formed on t-he stand R. The

screw SL is arranged at a suitable angle, so that in running the nut S3 from the position it is shown in by full lines in Fig. 5 to the positon it is shown in by dotted lines in said figure, (whereby the trough Sis movedlaterally so as to shift its end adjacent to the finishingrolls from a point in line with pass 9 to a point in line with pass 92) the fulcrum of the radiuslink S2 is changed in such a way that the trough S will still reach, when elevated, approximately the same position which it reaches when the nut S3 is in the position it is shown in by full lines. In other words, the trough S, when elevated, always reaches the same position, whether the nut S3 is at the upper or lower end of the oblique screw S4. yThis second movable finishing-trough is arranged over some ofthe line of feed-rollers O, astationary trough, S5, which I term the second stationary inishing-trough,7 being arranged over the residue of feed-rollers 0.

S is connected near itsjuncbottoms of troughs S and Sarc provided with suitable tru rnpetmoutl et openings, as clearly shown in Fig. 8, through which the feed-rollers O may project, so as to support vthe Ypiece above the bottoni of the trough at the time when it is to be fed into finishing-pass 9 or 9", as the case may be.

Piece i having been discharged from pass 8 and delivered into troughs S and S5, the hydraulic pressure is again removed from the plunger of hydraulic cylinder I, so as to permit the free end of trough S to turn down to the position it is shown in by full lines in Fig. 5, where it is in line with pass 9, having deposited the piece i on the feed-rollers O beneat-h it. Engine R E is then once more reversed,so that the feed-rollers O willfeed piece i into pass 9 of the iinishing-rolls. From this .pass it emerges in the form of a finished rail,

r, being received in the tapering trough T, which guides it into the bite ofthe dischargerollers U.

It is the common practice to construct the finishing-rolls with two finishing-passes eX- actly alike, as passes 9 and 9, in order that after one has become worn the other may be used in place of it. To accommodate this condition, I make the second movable finishingtrough laterally adjustable in the manner before described. I also provide for a corresponding lateral adjustment of those feed-rollers O which are under said movable trough. This adjustment of said feed-rollers is effected by shifting them on their shafts. The end of the tapering trough T adjacent to the finish-V ing-rolls is made wide enough to receive the rail from either finishing-pass 9 or 91.

The rock-shafts H, L", and P5 are provided The respective with suitable counter-weights, as shown, in order to counterl'ialance the movable troughs and tables connected with them.

The lconsecutive lines of feed-rollers and troughs increase in length proportionately 'with the increase inlength of the pieceby the action of the successive passes.

The movable troughs may be provided with anti-friction rollers, as indicated by dotted lines in connection with trough L in Fig. 3. All the movable troughs are mere carriers to transfer the piece from an upper pass and deposit it in the required position upon a stationary line ot' feed-rollers in front of a lower pass, and these carriers need not necessarily be of trough form, though that is a convenient and prfactical form.

Vhile I prefer to space all the passes in a set of rolls equally, as described, it is really necessary only to make the space betweenthe first two passes equal to the space between the next two, and so on. For instance, the space between passes 3 and et of the roughing-rolls i tioned in the claims, I refer to rolls the passes of which are equally spaced in sets, as just explained. rlhis equal spacing of the passes might be dispensed with by making all the lines of feed rollers Vand carriersindependent, which would, however, complicate the meehanisni somewhat, so that it is preferable to use equally-spaced rolls. They enable me to operate the carriers onopposite sides of the rolls through a single longitudinal rock-shaft.

It is obvious that the oblique movements of the movable tables and of some of the troughs might be effected by oblique guides instead of by radius-links. An obliquely ascending and descending feed-table might be used in front of the roughing-rolls in lieu of the stationary lines o f feed-rollers and carrier or trough K, suitable other means being provided forturning the piece c.

In three-high rolls, where a pass (one or more) between the middle and upper rolls is vertically over a pass between the middle and lower rolls, a verticallymoving carrier or feed-table, as the case might be,would be used on one side of the rolls to transfer the piece vertically, and an obliqucly-moving carrier or feed-table on the other side of the rolls to effeet the transferof the piece between alternating upper and lower passes.

I am aware that heretofore vertically-Inoving feed-tables on opposite sides ot' threehigh rolls have been simultaneously operated through the intervention of transverse rockshafts and bell-cranks. The use of such transverse rock-shafts made the mechanism for moving the tables quite complicated, with many movablejoints liable to wear. By the use of a single longitudinal rock-shaft, I simplify the mechanism very materially, and such longitudinal rock-shaft may be used with the same advantages whether the feeding and transferring devices on opposite sides of therolls move vertically or obliquely or swing, and my invention includes all of these combinations.

It is obvious that steamcylinders orengines may be used in lieu of the hydraulic cylinders described.

The details of construction and arrangement may be greatly varied, to suit circumstances or the Views of users,without departing from the principle of my invention.

I claim as my inventionn l. The combination, substantially as before set forth, of a set of three-high rolls constructed with equally-spaced passes, stationary lines of feed-rollers and a movable carrier in front of said rolls, a movable feed-table in rear of said rolls, and the mechanism, substantially such as described, for simultaneously moving said carrier and feed-table back and forth to register alternately with successive upper and lower passes.

2. The combination, substantially as before -set forth, of a set of three-high rolls, a stationary line of feed-rollers in line with a lower pass thereof, a movable carrier, and the mechanism, substantially such as described, for transversely moving the carrier from a preceding upper pass to a point where the supportingsurface of the carrier is in line with and below the top of the said feed-rollers.

3. The combination, substantially as before set forth,of a set of three-high rolls, a movable carrier,and the mechanism,.substantiallysuch as described, for elevating and lowering the carrier through an obliquepath to register alternately with an upper and a lower pass.

4 The combination, substantially as before set forth, of a set of three-high rolls, a movable feed-table, and the mechanism, substantially such as described, for elevating and lowering the feed-table through an oblique path.

5. The combination, substantially as before `set forth, of a set of three-high rolls, a movable carrier, (or feedtable,) the mechanism, substantially such as described, for elevating and lowering the carrier, and a radius-link fulerumed at one end, and pivoted to the carrier Awith its other end.

6. The combination, substantially as before set forth, of a set of three-high rolls, a movable carrier (or feed-table) on one side thereof, a movable feed-table on the other side thereof, a singlelongitudinal rock-shaft,and the means, substantially such as described, for connect' ing both the carrier and the feed-table with the roclrshaft, by the rocking of which the said carrier and feed-table on opposite sides of the rolls are simultaneously moved.

7. The combination, substantially as before set forth, of the first line offeed-rollers in front of the roughing-rolls, and the bloom-carriage arranged in a track at right angles to said line of feed-rollers, and constructed with a transverse bloomsupporting surface, substantially such as described, whereby the bloom may be delivered laterally from the carriage to the fecd-rollers.

8. The combination, substantially as before set forth, of the three-high roughing-rolls, the

'second line of feed-rollers in front thereof,the

pivoted trough provided with openings in one side to admit the feed-rollers, and the mechanism, substantially such as described, for transferring and turning the trough from a point in front of pass 2 to a point where its side having openings is below the top of said feed-rollers.

9. The combination, substantially as before set forth, ofthe line of feed-rollers in front of pass 5 of theiinishing-rolls, thepivoted tro-ugh (forreceivingthepiece frompasscoftheroughing-rolls) having openings in its side to admit the feed-rollers, and the mechanism, substantially such as described, for transferring and turning the trough down to a point where its side having openings is below the top of said feed-rollers.

IOO

IIO

l0. The combination, substantially as berolls to the iirst pass of the finishing rolls,

the lever to which the trough is secured, and trunnioned doublelacting hydraulic cylinder for swinging said lever and trough.

1l. The combination, substantially as before set forth, of a set of three-highrolls, a movable table, (or trough,)and a stationary table, (or trough,) forming a continuation ofthe movable one, the movable one being pivoted by a universal joint at the adjacent end ofthe stationary one, so as to be movable in an oblique direction.

12. The combination, substantially as before set forth, of the second line of feed-roll ers in front of the finishing-rolls, the first movable trough, said trough being pivoted at its end remote from the rolls, and having openings in its bottom to admit the feed-rollers, and the mechanism, substantially such as describedjbrlowering the trough from its turned up position to a point where its supportingbottom is below the top of the feed-rollers.

13. The combination,substantially as before set forth, of a set of three-high rolls having two finishingpasses, 9 and 9, the second mov.- able trough in front thereof, andlaterally adjustable, as described, so that it may register with either of said passes 9 or 9, and the mechanism, substantially such as described, for moving the trough 'to transfer the piece from a preceding pass.

14. The combination, substantially as before set forth, of the second movable trough in front of the finishing-rolls, the radius-link connectedthereto, the adjustable fulcrum of said radius-link, and the obliquely-arran ged screw for adjusting said fulcrum.

l5. A plant for rolling rails, consisting of three-high rolls and the trains of mechanism, substantially such as described, for feeding, transferring, and turning the'piece, whereby a bloom may be converted into a rail wholly automatically.

16. The combination, substantially as before set forth, of a stationaryline of feed-rol1 ers, a movable continuous trough provided with openings to admit the. feed-rollers through its supporting-su1-face, and the mechanism, substantially such as described, for lowering such trough from an elevated position to a point where its supporting surface is below the top ofthe feed-rollers.

In testimony whereof I affix my signature in presence of two witnesses.

FRANCIS H. TREAT.

lVitnesscs:

C. A. N EAL, E. T. VALKER. 

